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Chapter II <br /> topsoil is hauled and stored in topsoil stockpiles <br /> approved by CMLRD; <br /> topsoil stockpiles are posted with TOPSOIL signs; <br /> topsoil stockpiles are seeded with a temporary <br /> cover crop to protect them from wind and water <br /> erosion; <br /> when necessary, topsoil stockpiles are protected by <br /> perimeter diversion ditches designed to convey the <br /> peak flow from the 10 year/24 hour storm event. <br /> No topsoil will be salvaged when snow is on the ground. <br /> c. Topsoil - Sutey. <br /> The main topsoil storage area is situated northwest of the Sutey pile. A berm and <br /> perimeter ditch, 8 to 10 feet from the toe, runs along the lower end of the topsoil <br /> stockpile. <br /> Topsoil storage at the conclusion of Phase I of the Sutey pileexpansion (Summer, <br /> 1987) was estimated at 45,360 + cubic yards. The estimated additional topsoil <br /> recovery from topsoil salvage as the refuse pile expands through Phase III totals <br /> 38,890 cubic yards of material. <br /> Technical Revision 8, approved August 27, 1987 for expansion of the Sutey refuse <br /> pile, allows two additional topsoil storage areas at the site. <br /> d. Topsoil - Adit/Rock Tunnel. <br /> A technical revision was approved Feb. 10, 1987 (TR-7) for further expansion of the <br /> Adit/Rock Tunnel yard area by an additional 1.7 acres (in addition to the .9 acre <br /> expansion approved in TR-6, Nov. 5, 1986), and the Adit/Rock Tunnel yard <br /> expansion was completed in 1987. <br /> In the expansion, the existing topsoil pile (1480 cu. yds.) which had been located in <br /> the designated fill area was moved and an additional 2,000 yards of salvaged topsoil <br /> went to the storage pile. <br /> As noted in Chapter G, Soils Resource Information, in areas disturbed in connection <br /> with tunnel face-up work, soil horizons have been too thin to support vegetative <br /> growth individually, and plant growth will depend on combined soil horizons. <br /> Construction of two additional sediment ponds is the only additional surface <br /> disturbance anticipated in the term of the permit. A topsoil pile is situated at the <br /> location of the tunnel ponds. <br /> 35 <br />